package demo3;

class Animal {
    public String name;
    public int age;

    public Animal(String name, int age) {
        this.name = name;
        this.age = age;
    }
    public void eat() {
        System.out.println(this.name + "正在吃饭!");
    }
}

class Dog extends Animal {
    public Dog(String name, int age) {
        super(name, age);
    }
    @Override
    public void eat() {
        System.out.println(this.name + "正在吃狗粮!");
    }

    public void bark() {
        System.out.println(this.name + "整在汪汪汪!");
    }

}

public class Test {
    public static void main(String[] args) {
        Animal animal = new Dog("xiaohua", 3);  
        //animal.bark() // 编译报错
        animal.eat();
        
    }
}